Fountain-pen.



n.1. uPToN'.

FOUNTAIN PEN.

APPLICATION FILED ocT. 25.' 1915.

1,247,037. Patented N0v.2o,1917.

will" l i COANY, QF BOSTON, MASSACHUSETTS, A.

RTEN @E MASSUSETTS.

l Bpectcatlon of Lettere Eatent. Patented Non.. 29, 19t. '3-

appucauon filed october se, 1ere. Imi-iai no. rentre.

'To all wwm z'tmay concern.'

Be it known that l, HENRY J. Urron, a citizen of the United States,residing at Somerville, in the county of -Middlesex and State ofMassachusetts, have invented new and-useful Improvements inFountain-Pens, of which the following is a specification.

My invention is an improved self-611mg fountain pen and consists innovel mecha,- nism and in vnovel organization of the parts by which theink sack is collapsed.

ln the drawings Figure l is a longitudinal section of a; fountain penembodying my invention;

Fig. 2 is a perspective view of the lever;

Fig. 3a is a side View of the lever;

Figs. 3" and 3 show cross sections of the lever on lines 3L-3b andfic-3c respectively of Fig. 2; Y

Fig. 4 is al detail of the presservbar and its holding plug, the plugbeing in section;

Fig. 5 is a plan View of Fig. 4;

Fig. 6 is a view of barrel showing the slot; and

Fig. 'i' is a cross section on line 7 7 of Fig. 6.

Self-filling pens in which the ink is contained in a soft rubber sackwithin the handle or barrel of the pen, and in which the filling of thepen with ink is accomplished by collapsing the sack and permitting it toexpand bythe resiliency of its material, while the pen point to which itis hermetically secured is immersed in ink, are old .and Well known andvarious means and mechanism have been employed to collapse the ink sack.The object of my invenytion is to simplify the collapsing mechanism andcheapen the cost of manufacture and assembly.

To this end have devised an assembly of the presser bar, which is-inimmediate contact with the ink sack, so that it is positioned andsecured in place without the use of rivets, pins, or other positivesecuring means and have devised an organization by which the lever maybe secured in place without pivot pins or the like.

ln the drawings l, is the barrel which is a cylinder open at both ends,2 the point section, to the inner end of which is securedthesack 3. Atthe rear open end of the barrel 1, is fitted a cylindrical plug 4, whichis attened upon one side to ireceive one end of the presser bar 5. Thepresser bar 5 is bent or hooked' at oneend and this angular portion 51is inserted in a corresponding slot 41 in the plug Ll. lt will beobvious that when the presser bar is hooked into the plug and the pluginserted into the open rear end of the barrel the 'rcsser bar will besecurely held in position etween the flat surface. of the plug and theinner surface of the barrel, as indicated inllig. l, so that it canneither be moved sidewise nor longitudinally. ln

' v inserting the presser bar the plug is turned etv so that the bar .isbrought beneath the slot 11, where it is supported, longitudinally ofthe barrel, ldirectly beneath the slot and between the ink sack and theinner surface of the barrel.` Thepen section 2, with itsattached inksack 3, having been insertedatl the end of the barrel opposite the plug4, the lever 6, is next placed, the forked end being turned so that'itsWidth corresponds with the length of the slot. are pressed against thepresser bar and .forced downward until the shank of the lever is Withinthe slot, when the lever is turned, leaving the forks', 66, straddlingthe presser bar and the broad `end of the lever Within thebarrel. ltwill'be observed (see Fig. 3a) that the shank' ofthe lever is triangularin cross section and the broad end curved. When the lever is turned, itis in such fashion that the.. curved side of the forked portion and theoint of the triangular-shaped shank are ward the plug d. ylhe lever isthen moved vto the end of the slot toward the lpoint section, the leverbeing retained in place by the upward pressure of the' presser bar andthe engagement of the lforked portion with the inside of the barrel.proper position.

en the lever is moved to at the end of the slot the forks 66 areinnmediately over a narrowed portion 55 oi the presser bar, the forksresting in two notches in the edge of the presser bar (see Fig 5). Thesenotches .are so designed and positioned that when the shank of the leveris raised, to collapse the ink sack, the forks 66 will come into contactwith the end'of the respective slots, thus stopping the lever invertical position and preventing it from being by accident pushed toofar. lt will be observed that when the lever is in an upright position,the forked portion depresses the presser bar, and that when the lever isthrown down the triangular shank lies in the tl-shaped slot 11, whilethe forked porf lilo lli

tion rests again@ the upper, inner surface of the barrel. ln eitherposition the lever is retained in place by the resiliency of the inksack and the resser bar, or either of them and performs its functionswithout being secured in place by Apins or otherl connecting means.

ln operatioumwhen the-lever 6 is lifted, it and the forks 66pivot uponthe shoulders formed by the junction of the'broad portion 66 of thelever With the shank 6 of the lever, which shoulders coact with theinner surface of the barrel. 'lhe forks 66 swing in one direction uponthese shoulders as a center While the shank 6 swings in the oppositedirection, the inner end of the slot between the forks 66 pressing uponthe presser bar and depressing it as the inner end of the slot swingsabout the center or ulcrum point formed by the engagement of theshoulders `with the inner surface of the barrel.

The outer surface of the barrel l, at the end in which plug 4 ismounted, is provided with a serevv` thread, with which a correspondingthread on the inner surface of sleeve 7 engages, so that, when sleeve 'lis rotated it is advanced or retracted on the barrel l and in this way,When it is desired te operate lever 6, the sleeve is retracted and thelever uncovered so that its tree end may be manipulated and the leverraised to collapse the sack, While, after this is accomplished and thelever is lying again in the slot l1, the sleeve 7 is advanced to coverthe lever and lock it in 'position at the same time covering it. lnorder that the free end of the lever may be easily seized, a

agencer rece l2 is formed upon the outer surface ot the barrel, whichsuciently exposes the free end of the lever to enable the lever to beeasil grasped by the fingers. A cap 8 oil' usua term is employed tocover the pen the lever is lying in the slot. This arrangement serves asa stop to prevent the accidental forcing down of the shank of lever 6with the possible ejection of inkirom the ink sack.

l claim:-

ln a fountain pen, the combination of a loose lever-having a narrowshank portion and a broader, forked end portion, the shank and forkedend lying in dierent planes; a fountain or bolder, slotted to receivethe shank of the lever; an ink sackwithin the holder; al presser barmounted between the ink sack and the holder beneath the slotl and looselever, and having .a narrowed portion beneath the slot to orm shouldersor stops upon the presser bar, the forked ends of the loose leverembracing the presser bar and fitting Within the recesses, and engagingwith the shoulders when the lever is raised, all organized substantiallyas and for the purpose described.

. Signed by me at Boston, Mass., this seventeenth day of October, l9l6.

HENRY el., UPTON.

